Stock-specific advection of larval walleye (Sander vitreus) in western Lake Erie: Implications for larval growth, mixing, and stock discrimination
Michael E. Fraker, Eric J. Anderson, Cassandra J. May, Kuan-Yu Chen, Jeremiah J. Davis, Kristen M. DeVanna, Mark R. DuFour, Elizabeth A. Marschall, Christine M. Mayer, Jeffery G. Miner, Kevin L. Pangle, Jeremy J. Pritt, Edward F. Roseman, Jeffrey T. Tyson, Yingming Zhao, Stuart A Ludsin
2015, Journal of Great Lakes Research (41) 830-845
Physical processes can generate spatiotemporal heterogeneity in habitat quality for fish and also influence the overlap of pre-recruit individuals (e.g., larvae) with high-quality habitat through hydrodynamic advection. In turn, individuals from different stocks that are produced in different spawning locations or at different times may experience dissimilar habitat conditions, which...
Estimating the short-term recovery potential of little brown bats in the eastern United States in the face of White-nose syndrome
Robin E. Russell, Wayne E. Thogmartin, Richard A. Erickson, Jennifer A. Szymanski, Karl Tinsley
2015, Ecological Modelling (314) 111-117
White-nose syndrome (WNS) was first detected in North American bats in New York in 2006. Since that time WNS has spread throughout the northeastern United States, southeastern Canada, and southwest across Pennsylvania and as far west as Missouri. Suspect WNS cases have been identified in Minnesota and Iowa, and the...
Water withdrawals in Florida, 2012
Richard L. Marella
2015, Open-File Report 2015-1156
In 2012, the total amount of water withdrawn in Florida was estimated to be 14,237 million gallons per day (Mgal/d). Saline water accounted for 7,855 Mgal/d (55 percent), and freshwater accounted for 6,383 Mgal/d (45 percent). Groundwater accounted for 4,167 Mgal/d (65 percent) of freshwater withdrawals, and surface water accounted...
Photomosaics and event evidence from the Frazier Mountain paleoseismic site, trench 1, cuts 5–24, San Andreas Fault Zone, southern California (2010–2012)
Katherine M. Scharer, Tom E. Fumal, Ray J. Weldon II, Ashley R. Streig
2015, Open-File Report 2015-1147
The Frazier Mountain paleoseismic site is located within the northern Big Bend of the southern San Andreas Fault (lat 34.8122° N., lon 118.9034° W.), in a small structural basin formed by the fault (fig. 1). The site has been the focus of over a decade of paleoseismic study due to...
Wintering Bald Eagle count trends in the conterminous United States, 1986–2010
Wade Eakle, Laura S. Bond, Mark R. Fuller, Richard A Fischer, Karen Steenhof
2015, Journal of Raptor Research (49) 259-268
We analyzed counts from the annual Midwinter Bald Eagle Survey to examine state, regional, and national trends in counts of wintering Bald Eagles (Haliaeetus leucocephalus) within the conterminous 48 United States from 1986 to 2010. Using hierarchical mixed model methods, we report trends in counts...
Unusual behavior in the parental care of a house wren (Troglodytes aedon): Post fledging use of an old nest during cold nights
Micah N. Scholer
2015, Wilson Journal of Ornithology (127) 545-547
I report on the unusual behavior of an adult House Wren (Troglodytes aedon) leading recently fledged young back to the nest for two consecutive nights. The ambient temperature reached below 0°C during both nights. Despite disadvantages associated with remaining in the nest, this observation suggests that adult birds may assess...
Model averaging and muddled multimodel inferences
Brian S. Cade
2015, Ecology (96) 2370-7382
Three flawed practices associated with model averaging coefficients for predictor variables in regression models commonly occur when making multimodel inferences in analyses of ecological data. Model-averaged regression coefficients based on Akaike information criterion (AIC) weights have been recommended for addressing model uncertainty but they are not valid, interpretable estimates of...
Sediment yields from small, steep coastal watersheds of California
Jonathan A. Warrick, John M. Melack, Blair M. Goodridge
2015, Journal of Hydrology: Regional Studies (4) 516-534
Global inventories of sediment discharge to the ocean highlight the importance of small, steep watersheds (i.e., those having drainage areas less than 100,000 km2 and over 1000 m of relief) that collectively provide a dominant flux of sediment. The smallest of these coastal watersheds (e.g., those that have drainage areas...
Linking magma transport structures at Kīlauea volcano
Aaron G. Wech, Weston A. Thelen
2015, Geophysical Research Letters (42) 7090-7097
Identifying magma pathways is important for understanding and interpreting volcanic signals. At Kīlauea volcano, seismicity illuminates subsurface plumbing, but the broad spectrum of seismic phenomena hampers event identification. Discrete, long-period events (LPs) dominate the shallow (5-10 km) plumbing, and deep (40+ km) tremor has been observed offshore. However, our inability...
A critical assessment of the ecological assumptions underpinning compensatory mitigation of salmon-derived nutrients
Scott F. Collins, Amy M. Marcarelli, Colden V. Baxter, Mark S. Wipfli
2015, Environmental Management (56) 571-586
We critically evaluate some of the key ecological assumptions underpinning the use of nutrient replacement as a means of recovering salmon populations and a range of other organisms thought to be linked to productive salmon runs. These assumptions include: (1) nutrient mitigation mimics the ecological roles of salmon, (2) mitigation...
Legacy effects of no-analogue disturbances alter plant community diversity and composition in semi-arid sagebrush steppe
Julie Ripplinger, Janet Franklin, Thomas C. Edwards Jr.
2015, Journal of Vegetation Science (26) 923-933
Questions(i) What role does the type of managed disturbance play in structuring sagebrush steppe plant communities? (ii) How does the composition of post-disturbance plant communities change with time since disturbance? (iii) Does plant community diversity change over time following managed disturbance?LocationField study within the sagebrush steppe ecosystem. Rich County, Utah,...
Linking resource selection and mortality modeling for population estimation of mountain lions in Montana
Hugh S. Robinson, Toni K. Ruth, Justin A. Gude, David Choate, Rich DeSimone, Mark Hebblewhite, Marc R. Matchett, Michael S. Mitchell, Kerry Murphy, Jim Williams
2015, Ecological Modelling (312) 11-25
To be most effective, the scale of wildlife management practices should match the range of a particular species’ movements. For this reason, combined with our inability to rigorously or regularly census mountain lion populations, several authors have suggested that mountain lions be managed in a source-sink or metapopulation framework. We...
High mercury wet deposition at a “clean Air” site in Puerto Rico
James B. Shanley, Mark A. Engle, Martha A. Scholl, David P. Krabbenhoft, Robert Brunette, Mark L. Olson, Mary E. Conroy
2015, Environmental Science & Technology (49) 12474-12482
Atmospheric mercury deposition measurements are rare in tropical latitudes. Here we report on seven years (April 2005 to April 2012, with gaps) of wet Hg deposition measurements at a tropical wet forest in the Luquillo Mountains, northeastern Puerto Rico, U.S. Despite receiving unpolluted air off the Atlantic Ocean from northeasterly...
Improving efficiency and reliability of environmental DNA analysis for silver carp
Jon J. Amberg, S. Grace McCalla, Emy Monroe, Richard Lance, Kelly Baerwaldt, Mark P. Gaikowski
2015, Journal of Great Lakes Research (41) 367-373
Natural resource agencies have established surveillance programs which use environmental DNA (eDNA) for the early detection of bighead carp Hypophthalmichthys nobilis and silver carp Hypophthalmichthys molitrix before they establish populations within the Great Lakes. This molecular monitoring technique must be highly accurate and precise for confident interpretation and also efficient,...
Defining conservation targets on a landscape-scale
A.M. Benscoter, Stephanie S. Romanach, Laura A. Brandt
2015, Report
Conservation planning, the process of deciding how to protect, conserve, enhance and(or) minimize loss of natural and cultural resources, is a fundamental process to achieve conservation success in a time of rapid environmental change. Conservation targets, the measurable expressions of desired resource conditions, are an important tool in biological planning...
Modelling multi-hazard hurricane damages on an urbanized coast with a Bayesian Network approach
H.C.W. van Verseveld, A. R. Van Dongeren, Nathaniel G. Plant, W.S. Jager, C. den Heijer
2015, Coastal Engineering (103) 1-14
Hurricane flood impacts to residential buildings in coastal zones are caused by a number of hazards, such as inundation, overflow currents, erosion, and wave attack. However, traditional hurricane damage models typically make use of stage-damage functions, where the stage is related to flooding depth only. Moreover, these models are...
Estimating annualized earthquake losses for the conterminous United States
Kishor S. Jaiswal, Douglas Bausch, Rui Chen, Jawhar Bouabid, Hope Seligson
2015, Earthquake Spectra (31) 221-243
We make use of the most recent National Seismic Hazard Maps (the years 2008 and 2014 cycles), updated census data on population, and economic exposure estimates of general building stock to quantify annualized earthquake loss (AEL) for the conterminous United States. The AEL analyses were performed using the Federal Emergency...
Spring plant phenology and false springs in the conterminous US during the 21st century
Andrew J. Allstadt, Stephen J. Vavrus, Patricia J. Heglund, Anna M. Pidgeon, Wayne E. Thogmartin, Volker C. Radeloff
2015, Geophysical Research Letters (10)
The onset of spring plant growth has shifted earlier in the year over the past several decades due to rising global temperatures. Earlier spring onset may cause phenological mismatches between the availability of plant resources and dependent animals, and potentially lead to more false springs, when subsequent freezing temperatures damage...
Effects of elevated water temperature on physiological responses in adult freshwater mussels
Alissa M. Ganser, Teresa J. Newton, Roger J. Haro
2015, Freshwater Biology (60) 1705-1715
Freshwater mussels (order Unionoida) face multiple environmental stressors, which pose serious conservation challenges to this diverse assemblage of aquatic invertebrates. Of these stressors, elevated water temperature from global climate change and other anthropogenic sources may be the most ubiquitous and could be placing many mussel populations dangerously close...
Amphibole reaction rims as a record of pre-eruptive magmatic heating: An experimental approach
S. H. De Angelis, J. Larsen, Michelle L. Coombs, A. Dunn, Leslie A. Hayden
2015, Earth and Planetary Science Letters (426) 235-245
Magmatic minerals record the pre-eruptive timescales of magma ascent and mixing in crustal reservoirs and conduits. Investigations of the mineral records of magmatic processes are fundamental to our understanding of what controls eruption style, as ascent rates and magma mixing processes are well known to control and/or trigger potentially hazardous...
Wetland occupancy of pond-breeding amphibians in Yosemite National Park, USA
Gary M. Fellers, Patrick M. Kleeman, David A.W. Miller
2015, Journal of North American Herpetology (2015) 22-33
We estimated wetland occupancy and population trends for three species of pond-breeding anurans in Yosemite National Park from 2007-2011. We used a double survey technique in which two observers independently surveyed each site on the same day. Double surveys allowed us to calculate detectability for the three most common anurans...
Characterization of a novel hepadnavirus in the white sucker (Catostomus commersonii) from the Great Lakes Region of the USA
Cassidy M. Hahn, Luke R. Iwanowicz, Robert S. Cornman, Carla M. Conway, James R. Winton, Vicki S. Blazer
2015, Journal of Virology (89) 11801-11811
The white sucker Catostomus commersonii is a freshwater teleost often utilized as a resident sentinel. Here, we sequenced the full genome of a hepatitis B-like virus that infects white suckers from the Great Lakes Region of the USA. Dideoxysequencing confirmed the white sucker hepatitis B virus (WSHBV) has a circular...
Magma extrusion during the Ubinas 2013–2014 eruptive crisis based on satellite thermal imaging (MIROVA) and ground-based monitoring
Diego Coppola, Orlando Macedo, Domingo Ramos, Anthony Finizola, Dario Delle Donne, Jose del Carpio, Randall A. White, Wendy McCausland, Riky Centeno, Marco Rivera, Fredy Apaza, Beto Ccallata, Wilmer Chilo, Corrado Cigolini, Marco Laiolo, Ivonne Lazarte, Roger Machaca, Pablo Masias, Mayra Ortega, Nino Puma, Edu Taipe
2015, Journal of Volcanology and Geothermal Research (302) 199-210
After 3 years of mild gases emissions, the Ubinas volcano entered in a new eruptive phase on September 2nd, 2013. The MIROVA system (a space-based volcanic hot-spot detection system), allowed us to detect in near real time the thermal emissions associated with the eruption and provided early evidence of magma...
Global patterns and environmental controls of perchlorate and nitrate co-occurrence in arid and semi-arid environments
W Andrew Jackson, J.K. Bohlke, Brian J. Andraski, Lynne S. Fahlquist, Laura M. Bexfield, Frank D. Eckardt, John B. Gates, Alfonso F. Davila, Christopher P. McKay, Balaji Rao, Ritesh Sevanthi, Srinath Rajagopalan, Nubia Estrada, Neil C. Sturchio, Paul B. Hatzinger, Todd A. Anderson, Greta J. Orris, Julio L. Betancourt, David A. Stonestrom, Claudio Latorre, Yanhe Li, Gregory J. Harvey
2015, Geochimica et Cosmochimica Acta (164) 502-522
Natural perchlorate (ClO4−) is of increasing interest due to its wide-spread occurrence on Earth and Mars, yet little information exists on the relative abundance of ClO4− compared to other major anions, its stability, or long-term variations in production that may impact the observed distributions. Our objectives were to evaluate the...
Mineral Resource of the Month: Bromine
Emily Schnebele
2015, Earth (September 2015)
Bromine, along with mercury, is one of only two elements that are liquid at room temperature. Bromine is a highly volatile and corrosive reddish-brown liquid that evaporates easily and converts to a metal at extreme pressures — above about 540,000 times atmospheric pressure. Bromine occurs in seawater, evaporitic (salt) lakes...
